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A massacre.
The child massacred the people furiously.
Rays of red light came from his body, piercing through the humans in front of him.
Their bodies flew into pieces, blood showering his body as he drank it all straight from their corpses.
The sweetness of blood made him happy, it made the suffering and the agony of existing go away.
He wanted more, and more, and more.
Without hesitating he ended massacring his entire village.
His parents died by being cut into pieces by slashes of blood magic, as he delighted himself into drinking their blood.
He traveled after that, as a small child covered on blankets devouring and drinking the blood of anything he found.
Eventually, after only a week of being born, his heart began beating faster, his veins popped up, and he suddenly evolved.
His age drastically went up, his body quickly grew to the age of six years of age in the span of a few minutes.
Check "The Protagnist's Sister Is Actually the Strongest"!